Security and hurricane shutter

Details Security and hurricane shutter Security and hurricane shutter

1993-09-07

1995-11-28

Purol, David M.

Flexible or portable closure, partition, or panel

With hood, canopy, shield storage chamber, or outrigged...

For plural strip, slat, or panel and/or pleating type

160183, E05D 1526

Patent

active

054699053

ABSTRACT:
A security and hurricane shutter of greater strength and stability than available shutters using blades which are longitudinally pivoted to each other. The angle between adjacent blades is adjustable to provide for greater strength and stability at smaller angles, i.e., more blades per linear foot of the shutter, at smaller angles, and larger angles using fewer blades per linear foot for shutters, such as smaller width shutters which would require fewer blades per linear foot. The shutter can use either pulleys or direct mechanical drive mechanisms. The pulley systems or direct mechanical drive mechanisms can be powered by an installed electrical motor, a portable motor, or a hand crank for shutters of smaller size or to back up the installed electrical motor in case of power failure or motor failure.

REFERENCES:
patent: 2423987 (1947-07-01), Levikow
patent: 3738413 (1973-06-01), Frobosilo et al.
patent: 3842891 (1974-10-01), Kinnroth et al.
patent: 4460030 (1984-07-01), Tsunemura et al.
patent: 4503900 (1985-03-01), Osaka et al.
patent: 4763713 (1988-08-01), Kraus
patent: 4917167 (1990-04-01), Voss et al.
patent: 4998576 (1991-03-01), Moreno
patent: 5097883 (1992-03-01), Robinson et al.
patent: 5139075 (1992-08-01), Desrochers

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